Rebrand to Pezkuwichain Telemetry

- Rename PolkadotIcon to PezkuwiIcon
- Update pinned chains for Pezkuwichain
- Add pezkuwichain, bizinikiwi, pezkuwichain-js icons
- Update favicon with Pezkuwi branding
- Update package.json author to Dijital Kurdistan Tech Institute
- Update GitHub links to pezkuwichain/pezkuwi-telemetry
- Update backend Cargo.toml authors
- Rewrite README with Pezkuwichain documentation
- Add GitHub workflows (frontend-ci, backend-ci, docker, lock)

.github/workflows/frontend-ci.yml

@@ -0,0 +1,53 @@
+name: Frontend CI
+
+on:
+  push:
+    branches: [main, master]
+    paths:
+      - 'frontend/**'
+      - '.github/workflows/frontend-ci.yml'
+  pull_request:
+    branches: [main, master]
+    paths:
+      - 'frontend/**'
+      - '.github/workflows/frontend-ci.yml'
+  workflow_dispatch:
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: frontend
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Prettier check
+        run: npm run pretty:check
+
+      - name: Run tests
+        run: npm run test -- --passWithNoTests
+
+      - name: Build
+        run: npm run build
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: frontend-build
+          path: frontend/build/
+          retention-days: 7